Autech Industry Co., Ltd

Product information

Product Name	Phenolphthalein
CAS No.	77-09-8

Product Description

Use

(1) This product is a commonly used acid indicator with a color change range of pH 8.2 (colorless) - 10.0 (red). Phenolphthalein is also a drug used as a laxative in the colon to treat constipation.

(2) Acid-base indicator, non-aqueous titration indicator, chromatographic reagent.

Item	Specifications	Results
PH	8.0(colourless)-10.0（purple）	8.0(colourless)-10.0（purple）
mass absorption coefficient a（L/cm·g）	68.0-75.0	68.6
Solubility in ethanol	Pass	Pass
Residue on ignition	≤0.05%	0.024%
Loss in drying	≤1.0%	0.1%
Conclusion	The results conforms with enterprise standards

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